diff --git a/litedram/init.py b/litedram/init.py index 5d8d53d..dde56a3 100644 --- a/litedram/init.py +++ b/litedram/init.py @@ -456,6 +456,7 @@ def get_lpddr4_phy_init_sequence(phy_settings, timing_settings): bl = 16 dq_odt = "RZQ/2" ca_odt = "RZQ/2" + pull_down_drive_strength = "RZQ/3" def get_nwr(): frequency_ranges = [ # Table 28. Frequency Ranges for RL, WL, nWR, and nRTP Settings @@ -575,7 +576,7 @@ def get_lpddr4_phy_init_sequence(phy_settings, timing_settings): (0, 1, 1), (1, 1, 0), (2, 1, 0), - (3, 3, odt_map["RZQ/6"]), + (3, 3, odt_map[pull_down_drive_strength]), (6, 1, 0), (7, 1, 0), ]) @@ -690,6 +691,8 @@ def get_sdram_phy_c_header(phy_settings, timing_settings): 'K7LPDDR4PHY', 'V7LPDDR4PHY']: r += "#define SDRAM_PHY_WRITE_LATENCY_CALIBRATION_CAPABLE\n" r += "#define SDRAM_PHY_READ_LEVELING_CAPABLE\n" + if phytype in ['K7LPDDR4PHY', 'V7LPDDR4PHY']: + r += "#define SDRAM_PHY_WRITE_DQ_DQS_TRAINING_CAPABLE\n" if phytype in ["ECP5DDRPHY"]: r += "#define SDRAM_PHY_READ_LEVELING_CAPABLE\n" if phytype in ["LPDDR4SIMPHY"]: